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Beliebt Algebra >

ln(2x-(21)/x)<= 0

Lösung

ln (2 x - \frac{21}{x}) \leq 0

Lösung

- \frac{21}{2} < x \leq - 3 or \frac{21}{2} < x \leq \frac{7}{2}

+2

Intervall-Notation

(- \frac{21}{2}, - 3] \cup (\frac{21}{2}, \frac{7}{2}]

Dezimale

- 3.24037 \dots < x \leq - 3 or 3.24037 \dots < x \leq 3.5

Schritte zur Lösung

ln (2 x - \frac{21}{x}) \leq 0

Wende die log Regel an

2 x - \frac{21}{x} \leq 1 and 2 x - \frac{21}{x} > 0

2 x - \frac{21}{x} \leq 1 and 2 x - \frac{21}{x} > 0 : - \frac{21}{2} < x \leq - 3 or \frac{21}{2} < x \leq \frac{7}{2}

- \frac{21}{2} < x \leq - 3 or \frac{21}{2} < x \leq \frac{7}{2}

Graph

Beliebte Beispiele

faktorisieren b^2+11b+30

f a c t or b^{2} + 11 b + 30

faktorisieren 4x^2-4x-8

f a c t or 4 x^{2} - 4 x - 8

9-2(x+4)-10(25-x+4)=5-3x-4(x+1)

9 - 2 (x + 4) - 10 (25 - x + 4) = 5 - 3 x - 4 (x + 1)

∣ x + 5 ∣ = 8

vereinfachen 16^5

s im pl i f y 1 6^{5}